The H71 Wafer Single Disc Check Valve is an ultra-thin check valve characterized by an extremely short face-to-face dimension, typically 1/4 to 1/8 that of a traditional check valve. Composed of a body, disc, and spring, it uses a wafer connection and operates automatically based on pipeline pressure. The disc opens with flow and closes via spring tension and backflow when pressure drops. Due to its lightweight and space-saving nature, it is widely used in water supply, HVAC, chemical, and water treatment systems at pump discharge points.

Product Image:H71 Wafer Single Disc Check Valve

1、Ultra-Short Face-to-Face: The narrow wafer structure significantly saves installation space, making it ideal for compact modular piping.

2、Lightweight Design: Weighs over 60% less than traditional flanged check valves, reducing pipe support load requirements and shipping costs.

3、Sensitive Response: The short disc stroke, assisted by an internal spring, ensures rapid opening and closing, minimizing medium backflow response time.

4、Smooth Flow Path: The valve provides a near full-bore passage when open, offering low flow resistance and ensuring efficient flow rates.

5、Stable Sealing Performance: Available with soft seating (EPDM/Viton) or metal seating (SS) to provide reliable shut-off across different media types.

6、High Compatibility: Matches various flange standards (GB, ANSI, DIN, JIS, etc.) and offers flexible installation in both horizontal and vertical lines.

Structure Diagram:H71 Wafer Single Disc Check Valve

Material List

Performance Specification Sheet

Standard requirements for external dimensions

Product approved by PED97/23/EC (CE0036)

Casting approved by AD2000-W0

Inspection & Testing: API598, EN12266

Outline Diagram:H71 Wafer Single Disc Check Valve

Outline Dimension Table   （Unit:mm）

Due to the rapid R&D iteration speed of valve products from China Kaivex Valve Group Co., Ltd., the above technical parameters and specification documents, including product overview, features, parts materials, outline dimension charts, CAD drawings, and product instruction manuals, are for your reference only. For actual applications, please contact our valve sales engineers to obtain the support you need for free. Thank you!